Can anyone please suggest me ,default fileupload and download limit file size in jmeter using http requests. Thanks in Advance
There is no file limit size for jMeter or HTTP. The limits are your test-machine (memory, disksize, etc) and application (configuration, disksize, etc).
There are no limits especially if you use HTTP Raw Request sampler which can stream the file directly to the network in case of upload and discard the response data in case of download.
To limit the downloaded data size to the desired value set the corresponding
kg.apc.jmeter.samplers.ResultDataLimit property value
You can install HTTP Raw Request sampler using JMeter Plugins Manager